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#1
14-01-2013, 10:33
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verniers i had made
 CNC'd lightened flywheels  Canadian spec CA20E inlet      ET 8v block machined to take DET piston oil squirters (just see at bottom of bores  tubular exh manifold on the dyno 
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 Racing is life. Everything else, before and after, is just waiting. - Steve McQueen Last edited by CNHSS1; 14-01-2013 at 10:37. 
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#5
15-01-2013, 10:19
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very well actually. To be honest, with a forced induction, low tech 8v headed engine, a lot of the theory is cobblers in practice imho. That manifold with decent mapping (that car also ran emerald ecu mapped by the legendary Dave Walker
 ) ran really well  it was a laggy setup, but then the Pulsar T3 is known to be laggy when fitted to DETs or SRs as well. but being a tart i went tubular which was a lot more hassle  but did work well in the end. For up to 250hp i think the runners were too big on mine, should have been 1/4" smaller diameter for improved spool
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Racing is life. Everything else, before and after, is just waiting. - Steve McQueen
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#7
15-01-2013, 16:58
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yep, i hear ya, but then then gas has to go through 90deg from valve to exh port before it gets to the exh manifold, so its not like a less than perfect theory manifold is the only design issue.
anyway, perfect world tubulars the way to go imho, but its a lot of work as i found out and has a lot of potential for the F*ck Up Fairy to visit, whereas the K.I.S.S. approach of using a stock manifold or fabricating a log manifold is simpler and does work albeit potentially not as well as the tubular if done correctly http://www.boostedk20.com/forums/sho...bular-Manifold hopefully the pics are of use to the OP, even if theyve given you a chuckle nedge...
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Racing is life. Everything else, before and after, is just waiting. - Steve McQueen Last edited by CNHSS1; 15-01-2013 at 17:04.
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